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(No Model.) 2 Sheets-Sheet F. J. SPRAGUE.

ELECTRICAL PUMPING APPARATUS.

No. 385,211. Patented June 26, 1888.

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P. J. SPRAGUE.

ELECTRICAL PUMPING APPARATUS.

No. 385,211. Patented June 26, 1888.,

w'i Hiiil Y IIHI Un'rrnn Strntrns FRANK J.

SPRAGUE, OF NEV YGRK,

PATENT @sereno SPECIFXCATION fo-firing part of Letters Patent No. 385,211, dat-cd Application filed June 4, ISST.

To @ZZ whom it may Concern.-

Be it known that i, FRANK. J. Scurcola, of the city ol'l New York, in the county and State of New York, have invented a certain new and useful Improvement in Electrical l ump ing,` Apparatus, of which the followingis a speciiication.

My invention relates to portable and scparable rotary pumps and electric motors Yfor operating them, designed principally for pumping ont barges and ot-her vessels, such as are set Yl'orth iu the patent to Michales and Michaels, No. 358,053, dated February 22,1887.

The object ol' my invention is to increase the convenience and effectiveness ofsnch apparatus, the simplicity and compactness ot` construction ol' the motor, and the simplicity and efficiency ot' the connection ot' the motor to the pump; to ellicientlnvY protect the Vmotor from rain and. moisture, and to provide simple and eiiicient means for lum-icatingv the bearings of the motorshai't.

My invention consists in the novel devices and combinations ol' devices employed by me in accomplishing` the above-named objects, as hereinafter set forth and claimed.

My invention is illustrated in the acceuipanying` drawings, in which-- Figure 1 is a vertical section of the motor attached tothe pump; Fig. 2, atop view ofthe same, the parts inside the cover being shown in dotted lines, lollig. I3, a view showing,` the mode of joining the motorfcasc to the pump; Fig. 4, a view showing another mode ol' joining, the motor and pump shafts together; and Fig. 5, an enlarged section and partial elevation of the motor'shat't.

The motor is placed in a water-tight inc-los ing-case, consisting ot' a cyliiidrical bor, A, closed at its bottoni, except au aperture for the shaft, and a cover, B, iitting the case watertight, and also havin` a shalt aperture. This case is prel'eiablj,Y made of bronze or any suitable non-magnetic metal or material. It may, however, be made ot' iron. The inside of the bottom of the case is formed or provided with two curved ribs, e a, concentric with the sides of the case, which support the field-magnet of the motor. rEhe iield-inugneJ is circular in form and concentricwitli the case, being` composed of two semicircnlar cores, each wound with coils B/ B', while their'ends are left bare,

Serial No. QJILQCQ.

"iic 26, 1888.

(o model.)

and have bolted to them the curved bars C C, which bars 'form the consequent poles of the magnet. and rest on the shoulders b ol` thc ribs c. rlhe armature-core is a circular ring, pret erably made n p oll wires c and wound with coils d, and such armature revolves in the circle ol' the fxeld-magnet, being carried by the shaft D, which turns in bearings in the conter ol' the case.

At the center ofthe bottom of the rase is a 'flanged aperture, in which is placed a bushing, c, in which the shaft turns, the shalt having` a tlange,f, turning` between said bushing` and the arinaturehub. At the top ot' the case there is an opening provided with a ilauged bushing, g. lhrough this bushing, and held from turning by a locking-uut, g', on the outsido, a stationary bearing-pin, hf, which enters the end of the shalt, (sec Fig. 5,) and on which the shalt turns. The bushing` being` supported from the held-magnet, the bearing o1' the shalt is independent ot' the removable cover of the case. This support is byribs M1, which extend and are attached to the curved polelpieces C C. Strcngtheningribs 17 cxteud from the case to the supportinglribs c n.

r)She comumtatorbrushcs 7.' 7.', bearing` on the commutatorlcylimler l, are supported by arms m m, extending from bushing 5,'.

The use, as above described, et the circular case, Field-magnet, and armature, all arranged concentrically, and the motor being,` held centrally in the ease, provides a very compact and simple form of motor and one which is well protected from the weather. The cover B is removable without disturbing the motor and its connections, so that the cover can be taken off to inspect thc motor while it is running, and the motoritsellf can be readily taken from the case ,for inspection or repair.

D represents the vertical tnbc, and E the discharge-pipe, of the rotary pump. From the bend et' the pipe branching staiulards F ext-end upwardly t'or supiiorting the motor,aud the inotorcase has upon its bottoni centering ribs or projections G, for guiding it into position.

The end of the motorslial't within the bushingv c has crossribs n n, Fig. 5, and thepumpshaft H has corresponding` crossslots. l prefer, however, to employ instead ot' this a flexible connection, such as the springconnee- ICO tion shown in Fig. 4. Here the motor-shaft has attached to it a heavy spiral spring,a,the other end of which is joined to a square block, b', and the pump-shaft has a squared recess,c, which receives this block somewhat loosely, so that it can be readily placed therein. The power of the motor is thus communicated to the pump through the spring, and when the motor starts the whole load is notthrown suddenly upon it, but is placed upon it gradually.

rlhe brackets at the top of standardF have each a curved slot, d', at one end. The motor ease has fixed in its bottom part two bolts, G.

W'hen the pump is to be operated, it is first placed in position, and the motor-ease is then placed upon the standards F, its position being determined by the centering-projections G, so that the cross-ribs and slots in the ends of the motor and pump shafts may be made to engage each other. The bolts G are made to enter the ends of theslots,the case being turned upon the standards to bring the partsinto the right position, and nuts Gr2 are then tightened upon the bolts to lock them.

The motor-case is provided with ring-bolts p p, passing through the cover and held by nuts q and screwed into the magnet-cores, whereby the motor may be lifted to carry it from place to place. llhc conductors o' of the circuit leading to the motor preferably enter the ease through a rubber or other water-tight bushing, s. When the motor is thus inelosed in the water-tight ease, it is difficult or impossible to reach the bearings to lubricate them. I therefore provide the arrangement shown in Fig. 5.

The stationary bearing-pin It has a longitudinal hole, t, (shown in dotted lines,) extending in to the part of said pin surrounded by the shaft, and from the end of said hole a crossaperture, t', extends to the outside of the pin, and at this point the shaft has a channel, u. From this point the exterior of the pin has a spiral groove, e, on its surface extending to its lower end. The shaft D (part of which is brokenaway in the drawings) has ahole, w, extending through it longitudinally to within its l'ower bearing-surface, where a connected transverse aperture, x, extends across the shaft. To lubrieate the shaft-bearings, oil is admitted at the upper end of the bearing-pin t and flows through the holes t and t' and spiral groove e, whereby the bearing-surface is lubricated at this end. Then the oil flows through the aperture w and crossaperture .r of the shaft, and thus reaches and lubricates the bearings at the lower end thereof.

YVhat I claim is- 1. The combination of a circular inelosingcase, a shaft passing vertically through the center of said case, a circular armature on said shaft, and a circular field-magnet resting on the bottom of said case, substantially as set forth.

having a cross-aperture within said journal,

an opening for the admission of oil, and a longitudinal bore or aperture extending continuously from said opening to said crossapcrture, substantipll y as set forth.

5. The combination of a vertically-placed shaft and a journal inelosing said shaft at its lower end, said shaft having a longitudinal bore or aperture extending continuously from its upper end to a point within said journal, where there is a communicating cross-aperture, substantially as set forth.

6. The combination of the inclosingease,

Ythe shaft passing vertically through said case,

the bearingpin in the top ofthe case enter ing the end ofthe shaft, and bearings for the shaft in the lower side of the ease, said bearingApin having a longitudinal aperture extending from its top, a communicating cross aperture extending to its bearing-surface, and said shaft having a longitudinal bore or aperture extending from its upper end and a crossaperture at its lower bearing, substantially as set forth.

7. The combination of a pump and a ease inclosing au electric motor detachably connected with said pump, said ease having guiding projections on its bottom for determining its position on the pump, substantially as set forth.

8. rlhe combination of a rotary pump provided with upwardly-projccting standards and a shaft extend-ing vertically up from said pump, with an inelosing-case, an electric 1notor placed vertically therein, means for securing said ease upon said standards, and means for connecting the pump'shaft with the motorshaft, substantially as set forth.

9. The circular field-magnet consisting of two semieircular cores wound with wire coils and curved bars secured to the ends of said cores on each side, substantially as set forth.

10. The combination of a separable motor andpump and a spring-connection between their shafts, substantially as set forth.

This specification signed and witnessed this 26th day of May, 1887.

FRANK J. sPnAGUE.

Vitnesses S. D. GREENE, FREMONT XVILsoN.

IXO

Rar. 

